Which Statement Is True Regarding Group Differences in IQ Scores

Multiple Choice

Which statement is true regarding group differences in IQ scores?

A) Variation within ethnic groups is much greater than the variation between them.
B) The average score of European Americans is slightly higher than the average score of Asian Americans.
C) There is no significant difference between the average scores of those from upper-class communities and those from lower-class communities.
D) Genetic factors alone can account for differences in scores between ethnic groups.